How to Take a Selfie Picture, Courtesy of Kendall and Kylie Jenner

Tips from Kim Kardashian's snap-happy younger sisters: "Use a smartphone, because you can flip the camera and see yourself, so you know how you look," says Kendall. The key: It's all about the sun. Avoid direct light, says Kylie, since it can emphasize undereye bags. "I like the sun coming in behind me or from the side," she says. Hold the camera vertically, arm straight out—and don't overdo it, warns Kendall: "It's really weird when people post constant selfies." For more from Glamour's June issue, buy it on newsstands May 7, or download the digital issue right now!

Tips from Kim Kardashian's snap-happy younger sisters: "Use a smartphone, because you can flip the camera and see yourself, so you know how you look," says Kendall. The key: It's all about the sun. Avoid direct light, says Kylie, since it can emphasize undereye bags. "I like the sun coming in behind me or from the side," she says. Hold the camera vertically, arm straight out—and don't overdo it, warns Kendall: "It's really weird when people post constant selfies."